January weather forecastWaterbury, CT
January
Weather in January
January in Waterbury, Connecticut is typically the coldest month. Low and high temperatures range from 21.4°F (-5.9°C) to 33.3°F (0.7°C). Winters are marked by gray skies, regular snow showers, and biting winds. With a UV index at the minimum and overcast skies for almost 50% of the time, this month marks the start of an extended getting-cold season in Waterbury. Frequent snowfall adds a layer of white sheen to the town and creates a picture-perfect, although chilly, winter landscape.Temperature
January, with an average high of 33.3°F (0.7°C) and a low of 21.4°F (-5.9°C), signifies the coldest month of the year.Humidity
The average relative humidity in January is 77%.Rainfall
In Waterbury, in January, during 7.3 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 158.5 rainfall days, and 34.57" (878mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Waterbury, during January, snow falls for 7.7 days and regularly aggregates up to 4.13" (105mm) of snow. Throughout the year, there are 34.9 snowfall days, and 20.35" (517mm) of snow is accumulated.Daylight
In Waterbury, the average length of the day in January is 9h and 35min.On the first day of January, sunrise is at 7:18 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:06 pm EST.
Sunshine
In Waterbury, the average sunshine in January is 4.9h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In January, an average UV index of 2 transforms into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Waterbury, CT
- Average high temperature in January: 33.3°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in January: 21.4°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in January
Waterbury, CT
- Average pressure in January: 30.04"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Waterbury, CT
- Average wind speed in January: 8.3mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in January
Waterbury, CT
- Average humidity in January: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (72%).
Average rainfall in January
Waterbury, CT
- Average rainfall in January: 2.36"
The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in January
Waterbury, CT
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Waterbury, CT
- Average snowfall in January: 4.13"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Waterbury, CT
- Average snowfall days in January: 7.7 days
The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Waterbury, CT
- Average daylight in January: 9h and 36min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 4h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Waterbury, CT
- Average sunshine days in January: 18.1 days
The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in January
Waterbury, CT
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Waterbury, CT
- Average cloud cover in January: 47
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in January
Waterbury, CT
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
